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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant - Glue code to setup EAPOL and RSN modules | |
56586197 | 3 | * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> |
6fc6879b JM |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | */ | |
14 | ||
15 | #include "includes.h" | |
16 | ||
17 | #include "common.h" | |
18 | #include "eapol_supp/eapol_supp_sm.h" | |
19 | #include "wpa.h" | |
20 | #include "eloop.h" | |
21 | #include "config.h" | |
22 | #include "l2_packet/l2_packet.h" | |
23 | #include "wpa_common.h" | |
24 | #include "wpa_supplicant_i.h" | |
2d5b792d | 25 | #include "driver_i.h" |
6fc6879b JM |
26 | #include "pmksa_cache.h" |
27 | #include "mlme.h" | |
c2a04078 | 28 | #include "sme.h" |
6fc6879b JM |
29 | #include "ieee802_11_defs.h" |
30 | #include "wpa_ctrl.h" | |
31 | #include "wpas_glue.h" | |
fa201b69 | 32 | #include "wps_supplicant.h" |
6fc6879b JM |
33 | |
34 | ||
35 | #ifndef CONFIG_NO_CONFIG_BLOBS | |
36 | #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) | |
37 | static void wpa_supplicant_set_config_blob(void *ctx, | |
38 | struct wpa_config_blob *blob) | |
39 | { | |
40 | struct wpa_supplicant *wpa_s = ctx; | |
41 | wpa_config_set_blob(wpa_s->conf, blob); | |
c08b9180 JM |
42 | if (wpa_s->conf->update_config) { |
43 | int ret = wpa_config_write(wpa_s->confname, wpa_s->conf); | |
44 | if (ret) { | |
45 | wpa_printf(MSG_DEBUG, "Failed to update config after " | |
46 | "blob set"); | |
47 | } | |
48 | } | |
6fc6879b JM |
49 | } |
50 | ||
51 | ||
52 | static const struct wpa_config_blob * | |
53 | wpa_supplicant_get_config_blob(void *ctx, const char *name) | |
54 | { | |
55 | struct wpa_supplicant *wpa_s = ctx; | |
56 | return wpa_config_get_blob(wpa_s->conf, name); | |
57 | } | |
58 | #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */ | |
59 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
60 | ||
61 | ||
62 | #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) | |
63 | static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type, | |
64 | const void *data, u16 data_len, | |
65 | size_t *msg_len, void **data_pos) | |
66 | { | |
67 | struct ieee802_1x_hdr *hdr; | |
68 | ||
69 | *msg_len = sizeof(*hdr) + data_len; | |
70 | hdr = os_malloc(*msg_len); | |
71 | if (hdr == NULL) | |
72 | return NULL; | |
73 | ||
74 | hdr->version = wpa_s->conf->eapol_version; | |
75 | hdr->type = type; | |
76 | hdr->length = host_to_be16(data_len); | |
77 | ||
78 | if (data) | |
79 | os_memcpy(hdr + 1, data, data_len); | |
80 | else | |
81 | os_memset(hdr + 1, 0, data_len); | |
82 | ||
83 | if (data_pos) | |
84 | *data_pos = hdr + 1; | |
85 | ||
86 | return (u8 *) hdr; | |
87 | } | |
88 | ||
89 | ||
90 | /** | |
91 | * wpa_ether_send - Send Ethernet frame | |
92 | * @wpa_s: Pointer to wpa_supplicant data | |
93 | * @dest: Destination MAC address | |
94 | * @proto: Ethertype in host byte order | |
95 | * @buf: Frame payload starting from IEEE 802.1X header | |
96 | * @len: Frame payload length | |
97 | * Returns: >=0 on success, <0 on failure | |
98 | */ | |
99 | static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest, | |
100 | u16 proto, const u8 *buf, size_t len) | |
101 | { | |
102 | if (wpa_s->l2) { | |
103 | return l2_packet_send(wpa_s->l2, dest, proto, buf, len); | |
104 | } | |
105 | ||
106 | return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len); | |
107 | } | |
108 | #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */ | |
109 | ||
110 | ||
111 | #ifdef IEEE8021X_EAPOL | |
112 | ||
113 | /** | |
114 | * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator | |
115 | * @ctx: Pointer to wpa_supplicant data (wpa_s) | |
116 | * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*) | |
117 | * @buf: EAPOL payload (after IEEE 802.1X header) | |
118 | * @len: EAPOL payload length | |
119 | * Returns: >=0 on success, <0 on failure | |
120 | * | |
121 | * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame | |
122 | * to the current Authenticator. | |
123 | */ | |
124 | static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf, | |
125 | size_t len) | |
126 | { | |
127 | struct wpa_supplicant *wpa_s = ctx; | |
128 | u8 *msg, *dst, bssid[ETH_ALEN]; | |
129 | size_t msglen; | |
130 | int res; | |
131 | ||
132 | /* TODO: could add l2_packet_sendmsg that allows fragments to avoid | |
133 | * extra copy here */ | |
134 | ||
56586197 | 135 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
6fc6879b JM |
136 | wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
137 | /* Current SSID is not using IEEE 802.1X/EAP, so drop possible | |
138 | * EAPOL frames (mainly, EAPOL-Start) from EAPOL state | |
139 | * machines. */ | |
140 | wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X " | |
141 | "mode (type=%d len=%lu)", type, | |
142 | (unsigned long) len); | |
143 | return -1; | |
144 | } | |
145 | ||
146 | if (pmksa_cache_get_current(wpa_s->wpa) && | |
147 | type == IEEE802_1X_TYPE_EAPOL_START) { | |
148 | /* Trying to use PMKSA caching - do not send EAPOL-Start frames | |
149 | * since they will trigger full EAPOL authentication. */ | |
150 | wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send " | |
151 | "EAPOL-Start"); | |
152 | return -1; | |
153 | } | |
154 | ||
a8e16edc | 155 | if (is_zero_ether_addr(wpa_s->bssid)) { |
6fc6879b JM |
156 | wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an " |
157 | "EAPOL frame"); | |
158 | if (wpa_drv_get_bssid(wpa_s, bssid) == 0 && | |
a8e16edc | 159 | !is_zero_ether_addr(bssid)) { |
6fc6879b JM |
160 | dst = bssid; |
161 | wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR | |
162 | " from the driver as the EAPOL destination", | |
163 | MAC2STR(dst)); | |
164 | } else { | |
165 | dst = wpa_s->last_eapol_src; | |
166 | wpa_printf(MSG_DEBUG, "Using the source address of the" | |
167 | " last received EAPOL frame " MACSTR " as " | |
168 | "the EAPOL destination", | |
169 | MAC2STR(dst)); | |
170 | } | |
171 | } else { | |
172 | /* BSSID was already set (from (Re)Assoc event, so use it as | |
173 | * the EAPOL destination. */ | |
174 | dst = wpa_s->bssid; | |
175 | } | |
176 | ||
177 | msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL); | |
178 | if (msg == NULL) | |
179 | return -1; | |
180 | ||
181 | wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst)); | |
182 | wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen); | |
183 | res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen); | |
184 | os_free(msg); | |
185 | return res; | |
186 | } | |
187 | ||
188 | ||
189 | /** | |
190 | * wpa_eapol_set_wep_key - set WEP key for the driver | |
191 | * @ctx: Pointer to wpa_supplicant data (wpa_s) | |
192 | * @unicast: 1 = individual unicast key, 0 = broadcast key | |
193 | * @keyidx: WEP key index (0..3) | |
194 | * @key: Pointer to key data | |
195 | * @keylen: Key length in bytes | |
196 | * Returns: 0 on success or < 0 on error. | |
197 | */ | |
198 | static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx, | |
199 | const u8 *key, size_t keylen) | |
200 | { | |
201 | struct wpa_supplicant *wpa_s = ctx; | |
202 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
203 | int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 : | |
204 | WPA_CIPHER_WEP104; | |
205 | if (unicast) | |
206 | wpa_s->pairwise_cipher = cipher; | |
207 | else | |
208 | wpa_s->group_cipher = cipher; | |
209 | } | |
210 | return wpa_drv_set_key(wpa_s, WPA_ALG_WEP, | |
211 | unicast ? wpa_s->bssid : | |
212 | (u8 *) "\xff\xff\xff\xff\xff\xff", | |
213 | keyidx, unicast, (u8 *) "", 0, key, keylen); | |
214 | } | |
215 | ||
216 | ||
217 | static void wpa_supplicant_aborted_cached(void *ctx) | |
218 | { | |
219 | struct wpa_supplicant *wpa_s = ctx; | |
220 | wpa_sm_aborted_cached(wpa_s->wpa); | |
221 | } | |
222 | ||
223 | ||
224 | static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success, | |
225 | void *ctx) | |
226 | { | |
227 | struct wpa_supplicant *wpa_s = ctx; | |
228 | int res, pmk_len; | |
229 | u8 pmk[PMK_LEN]; | |
230 | ||
231 | wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully", | |
232 | success ? "" : "un"); | |
233 | ||
fa201b69 | 234 | if (wpas_wps_eapol_cb(wpa_s) > 0) |
ad08c363 | 235 | return; |
ad08c363 | 236 | |
0930209d JM |
237 | if (!success) { |
238 | /* | |
239 | * Make sure we do not get stuck here waiting for long EAPOL | |
240 | * timeout if the AP does not disconnect in case of | |
241 | * authentication failure. | |
242 | */ | |
243 | wpa_supplicant_req_auth_timeout(wpa_s, 2, 0); | |
244 | } | |
245 | ||
c2a04078 | 246 | if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b JM |
247 | return; |
248 | ||
56586197 | 249 | if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) |
6fc6879b JM |
250 | return; |
251 | ||
252 | wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way " | |
253 | "handshake"); | |
254 | ||
255 | pmk_len = PMK_LEN; | |
256 | res = eapol_sm_get_key(eapol, pmk, PMK_LEN); | |
257 | if (res) { | |
258 | /* | |
259 | * EAP-LEAP is an exception from other EAP methods: it | |
260 | * uses only 16-byte PMK. | |
261 | */ | |
262 | res = eapol_sm_get_key(eapol, pmk, 16); | |
263 | pmk_len = 16; | |
264 | } | |
265 | ||
266 | if (res) { | |
267 | wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state " | |
268 | "machines"); | |
269 | return; | |
270 | } | |
271 | ||
272 | if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk, | |
273 | pmk_len)) { | |
274 | wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver"); | |
275 | } | |
276 | ||
277 | wpa_supplicant_cancel_scan(wpa_s); | |
278 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
279 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
280 | ||
281 | } | |
282 | ||
283 | ||
284 | static void wpa_supplicant_notify_eapol_done(void *ctx) | |
285 | { | |
286 | struct wpa_supplicant *wpa_s = ctx; | |
287 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete"); | |
56586197 | 288 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
289 | wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE); |
290 | } else { | |
6fc6879b JM |
291 | wpa_supplicant_cancel_auth_timeout(wpa_s); |
292 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
293 | } | |
294 | } | |
295 | ||
296 | #endif /* IEEE8021X_EAPOL */ | |
297 | ||
298 | ||
299 | #ifndef CONFIG_NO_WPA | |
300 | ||
301 | static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s) | |
302 | { | |
303 | size_t i; | |
304 | int ret = 0; | |
305 | struct wpa_scan_res *curr = NULL; | |
306 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
307 | const u8 *ie; | |
308 | ||
309 | if (wpa_s->scan_res == NULL) | |
310 | return -1; | |
311 | ||
312 | for (i = 0; i < wpa_s->scan_res->num; i++) { | |
313 | struct wpa_scan_res *r = wpa_s->scan_res->res[i]; | |
314 | if (os_memcmp(r->bssid, wpa_s->bssid, ETH_ALEN) != 0) | |
315 | continue; | |
316 | ie = wpa_scan_get_ie(r, WLAN_EID_SSID); | |
317 | if (ssid == NULL || | |
318 | ((ie && ie[1] == ssid->ssid_len && | |
319 | os_memcmp(ie + 2, ssid->ssid, ssid->ssid_len) == 0) || | |
320 | ssid->ssid_len == 0)) { | |
321 | curr = r; | |
322 | break; | |
323 | } | |
324 | } | |
325 | ||
326 | if (curr) { | |
327 | ie = wpa_scan_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE); | |
328 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) | |
329 | ret = -1; | |
330 | ||
331 | ie = wpa_scan_get_ie(curr, WLAN_EID_RSN); | |
332 | if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) | |
333 | ret = -1; | |
334 | } else { | |
335 | ret = -1; | |
336 | } | |
337 | ||
338 | return ret; | |
339 | } | |
340 | ||
341 | ||
342 | static int wpa_supplicant_get_beacon_ie(void *ctx) | |
343 | { | |
344 | struct wpa_supplicant *wpa_s = ctx; | |
345 | if (wpa_get_beacon_ie(wpa_s) == 0) { | |
346 | return 0; | |
347 | } | |
348 | ||
349 | /* No WPA/RSN IE found in the cached scan results. Try to get updated | |
350 | * scan results from the driver. */ | |
351 | if (wpa_supplicant_get_scan_results(wpa_s) < 0) { | |
352 | return -1; | |
353 | } | |
354 | ||
355 | return wpa_get_beacon_ie(wpa_s); | |
356 | } | |
357 | ||
358 | ||
359 | static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type, | |
360 | const void *data, u16 data_len, | |
361 | size_t *msg_len, void **data_pos) | |
362 | { | |
363 | return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos); | |
364 | } | |
365 | ||
366 | ||
367 | static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto, | |
368 | const u8 *buf, size_t len) | |
369 | { | |
370 | return wpa_ether_send(wpa_s, dest, proto, buf, len); | |
371 | } | |
372 | ||
373 | ||
6fc6879b JM |
374 | static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) |
375 | { | |
376 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
377 | } | |
378 | ||
379 | ||
380 | static void _wpa_supplicant_set_state(void *wpa_s, wpa_states state) | |
381 | { | |
382 | wpa_supplicant_set_state(wpa_s, state); | |
383 | } | |
384 | ||
385 | ||
386 | /** | |
387 | * wpa_supplicant_get_state - Get the connection state | |
388 | * @wpa_s: Pointer to wpa_supplicant data | |
389 | * Returns: The current connection state (WPA_*) | |
390 | */ | |
391 | static wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s) | |
392 | { | |
393 | return wpa_s->wpa_state; | |
394 | } | |
395 | ||
396 | ||
397 | static wpa_states _wpa_supplicant_get_state(void *wpa_s) | |
398 | { | |
399 | return wpa_supplicant_get_state(wpa_s); | |
400 | } | |
401 | ||
402 | ||
403 | static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code) | |
404 | { | |
405 | wpa_supplicant_disassociate(wpa_s, reason_code); | |
3e2ad1b9 JM |
406 | /* Schedule a scan to make sure we continue looking for networks */ |
407 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
6fc6879b JM |
408 | } |
409 | ||
410 | ||
411 | static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code) | |
412 | { | |
413 | wpa_supplicant_deauthenticate(wpa_s, reason_code); | |
3e2ad1b9 JM |
414 | /* Schedule a scan to make sure we continue looking for networks */ |
415 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
6fc6879b JM |
416 | } |
417 | ||
418 | ||
419 | static void * wpa_supplicant_get_network_ctx(void *wpa_s) | |
420 | { | |
421 | return wpa_supplicant_get_ssid(wpa_s); | |
422 | } | |
423 | ||
424 | ||
425 | static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid) | |
426 | { | |
427 | struct wpa_supplicant *wpa_s = ctx; | |
c2a04078 | 428 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
429 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
430 | return 0; | |
431 | } | |
432 | return wpa_drv_get_bssid(wpa_s, bssid); | |
433 | } | |
434 | ||
435 | ||
46690a3b | 436 | static int wpa_supplicant_set_key(void *_wpa_s, wpa_alg alg, |
6fc6879b JM |
437 | const u8 *addr, int key_idx, int set_tx, |
438 | const u8 *seq, size_t seq_len, | |
439 | const u8 *key, size_t key_len) | |
440 | { | |
46690a3b JM |
441 | struct wpa_supplicant *wpa_s = _wpa_s; |
442 | if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) { | |
443 | /* Clear the MIC error counter when setting a new PTK. */ | |
444 | wpa_s->mic_errors_seen = 0; | |
445 | } | |
6fc6879b JM |
446 | return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len, |
447 | key, key_len); | |
448 | } | |
449 | ||
450 | ||
451 | static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr, | |
452 | int protection_type, | |
453 | int key_type) | |
454 | { | |
455 | return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type, | |
456 | key_type); | |
457 | } | |
458 | ||
459 | ||
460 | static int wpa_supplicant_add_pmkid(void *wpa_s, | |
461 | const u8 *bssid, const u8 *pmkid) | |
462 | { | |
463 | return wpa_drv_add_pmkid(wpa_s, bssid, pmkid); | |
464 | } | |
465 | ||
466 | ||
467 | static int wpa_supplicant_remove_pmkid(void *wpa_s, | |
468 | const u8 *bssid, const u8 *pmkid) | |
469 | { | |
470 | return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid); | |
471 | } | |
472 | ||
473 | ||
474 | #ifdef CONFIG_IEEE80211R | |
475 | static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md, | |
476 | const u8 *ies, size_t ies_len) | |
477 | { | |
478 | struct wpa_supplicant *wpa_s = ctx; | |
c2a04078 | 479 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b | 480 | return ieee80211_sta_update_ft_ies(wpa_s, md, ies, ies_len); |
c2a04078 JM |
481 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
482 | return sme_update_ft_ies(wpa_s, md, ies, ies_len); | |
6fc6879b JM |
483 | return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len); |
484 | } | |
485 | ||
486 | ||
487 | static int wpa_supplicant_send_ft_action(void *ctx, u8 action, | |
488 | const u8 *target_ap, | |
489 | const u8 *ies, size_t ies_len) | |
490 | { | |
491 | struct wpa_supplicant *wpa_s = ctx; | |
c2a04078 | 492 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
493 | return ieee80211_sta_send_ft_action(wpa_s, action, target_ap, |
494 | ies, ies_len); | |
495 | return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len); | |
496 | } | |
497 | #endif /* CONFIG_IEEE80211R */ | |
498 | ||
499 | #endif /* CONFIG_NO_WPA */ | |
500 | ||
501 | ||
502 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
503 | static void wpa_supplicant_eap_param_needed(void *ctx, const char *field, | |
504 | const char *txt) | |
505 | { | |
506 | struct wpa_supplicant *wpa_s = ctx; | |
507 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
508 | char *buf; | |
509 | size_t buflen; | |
510 | int len; | |
511 | ||
512 | if (ssid == NULL) | |
513 | return; | |
514 | ||
515 | buflen = 100 + os_strlen(txt) + ssid->ssid_len; | |
516 | buf = os_malloc(buflen); | |
517 | if (buf == NULL) | |
518 | return; | |
519 | len = os_snprintf(buf, buflen, | |
520 | WPA_CTRL_REQ "%s-%d:%s needed for SSID ", | |
521 | field, ssid->id, txt); | |
522 | if (len < 0 || (size_t) len >= buflen) { | |
523 | os_free(buf); | |
524 | return; | |
525 | } | |
526 | if (ssid->ssid && buflen > len + ssid->ssid_len) { | |
527 | os_memcpy(buf + len, ssid->ssid, ssid->ssid_len); | |
528 | len += ssid->ssid_len; | |
529 | buf[len] = '\0'; | |
530 | } | |
531 | buf[buflen - 1] = '\0'; | |
532 | wpa_msg(wpa_s, MSG_INFO, "%s", buf); | |
533 | os_free(buf); | |
534 | } | |
535 | #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
536 | #define wpa_supplicant_eap_param_needed NULL | |
537 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
538 | ||
539 | ||
540 | int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s) | |
541 | { | |
542 | #ifdef IEEE8021X_EAPOL | |
543 | struct eapol_ctx *ctx; | |
544 | ctx = os_zalloc(sizeof(*ctx)); | |
545 | if (ctx == NULL) { | |
546 | wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context."); | |
547 | return -1; | |
548 | } | |
549 | ||
550 | ctx->ctx = wpa_s; | |
551 | ctx->msg_ctx = wpa_s; | |
552 | ctx->eapol_send_ctx = wpa_s; | |
553 | ctx->preauth = 0; | |
554 | ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done; | |
555 | ctx->eapol_send = wpa_supplicant_eapol_send; | |
556 | ctx->set_wep_key = wpa_eapol_set_wep_key; | |
557 | ctx->set_config_blob = wpa_supplicant_set_config_blob; | |
558 | ctx->get_config_blob = wpa_supplicant_get_config_blob; | |
559 | ctx->aborted_cached = wpa_supplicant_aborted_cached; | |
560 | #ifdef EAP_TLS_OPENSSL | |
561 | ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path; | |
562 | ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path; | |
563 | ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path; | |
564 | #endif /* EAP_TLS_OPENSSL */ | |
116654ce | 565 | ctx->wps = wpa_s->wps; |
6fc6879b JM |
566 | ctx->eap_param_needed = wpa_supplicant_eap_param_needed; |
567 | ctx->cb = wpa_supplicant_eapol_cb; | |
568 | ctx->cb_ctx = wpa_s; | |
569 | wpa_s->eapol = eapol_sm_init(ctx); | |
570 | if (wpa_s->eapol == NULL) { | |
571 | os_free(ctx); | |
572 | wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state " | |
573 | "machines."); | |
574 | return -1; | |
575 | } | |
576 | #endif /* IEEE8021X_EAPOL */ | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | ||
582 | int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s) | |
583 | { | |
584 | #ifndef CONFIG_NO_WPA | |
585 | struct wpa_sm_ctx *ctx; | |
586 | ctx = os_zalloc(sizeof(*ctx)); | |
587 | if (ctx == NULL) { | |
588 | wpa_printf(MSG_ERROR, "Failed to allocate WPA context."); | |
589 | return -1; | |
590 | } | |
591 | ||
592 | ctx->ctx = wpa_s; | |
0f057fb2 | 593 | ctx->msg_ctx = wpa_s; |
6fc6879b JM |
594 | ctx->set_state = _wpa_supplicant_set_state; |
595 | ctx->get_state = _wpa_supplicant_get_state; | |
6fc6879b JM |
596 | ctx->deauthenticate = _wpa_supplicant_deauthenticate; |
597 | ctx->disassociate = _wpa_supplicant_disassociate; | |
598 | ctx->set_key = wpa_supplicant_set_key; | |
599 | ctx->get_network_ctx = wpa_supplicant_get_network_ctx; | |
600 | ctx->get_bssid = wpa_supplicant_get_bssid; | |
601 | ctx->ether_send = _wpa_ether_send; | |
602 | ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie; | |
603 | ctx->alloc_eapol = _wpa_alloc_eapol; | |
604 | ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout; | |
605 | ctx->add_pmkid = wpa_supplicant_add_pmkid; | |
606 | ctx->remove_pmkid = wpa_supplicant_remove_pmkid; | |
607 | #ifndef CONFIG_NO_CONFIG_BLOBS | |
608 | ctx->set_config_blob = wpa_supplicant_set_config_blob; | |
609 | ctx->get_config_blob = wpa_supplicant_get_config_blob; | |
610 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
611 | ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection; | |
612 | #ifdef CONFIG_IEEE80211R | |
613 | ctx->update_ft_ies = wpa_supplicant_update_ft_ies; | |
614 | ctx->send_ft_action = wpa_supplicant_send_ft_action; | |
615 | #endif /* CONFIG_IEEE80211R */ | |
616 | ||
617 | wpa_s->wpa = wpa_sm_init(ctx); | |
618 | if (wpa_s->wpa == NULL) { | |
619 | wpa_printf(MSG_ERROR, "Failed to initialize WPA state " | |
620 | "machine"); | |
621 | return -1; | |
622 | } | |
623 | #endif /* CONFIG_NO_WPA */ | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | ||
629 | void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s, | |
630 | struct wpa_ssid *ssid) | |
631 | { | |
632 | struct rsn_supp_config conf; | |
633 | if (ssid) { | |
634 | os_memset(&conf, 0, sizeof(conf)); | |
886a807f | 635 | conf.network_ctx = ssid; |
6fc6879b JM |
636 | conf.peerkey_enabled = ssid->peerkey; |
637 | conf.allowed_pairwise_cipher = ssid->pairwise_cipher; | |
a6a89fea | 638 | #ifdef IEEE8021X_EAPOL |
6fc6879b JM |
639 | conf.eap_workaround = ssid->eap_workaround; |
640 | conf.eap_conf_ctx = &ssid->eap; | |
a6a89fea | 641 | #endif /* IEEE8021X_EAPOL */ |
6fc6879b JM |
642 | conf.ssid = ssid->ssid; |
643 | conf.ssid_len = ssid->ssid_len; | |
581a8cde | 644 | conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey; |
6fc6879b JM |
645 | } |
646 | wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL); | |
647 | } |